LangChain# LangChain Integration Add Guardrails to a Chain Using a Chain inside Guardrails LangSmith Integration RunnableRails Overview Input/Output Formats Prompt Passthrough Input/Output Keys for Chains with Guardrails Using Tools Limitations LangGraph Integration Overview Prerequisites Basic Integration Pattern Tool Calling Integration Stateful Conversations Multi-Agent Workflows Best Practices Debugging and Troubleshooting Streaming Support Chain-With-Guardrails Chain with Guardrails Runnable-As-Action Runnable as Action